baber/WOPTO huggingface dataset:
Patent GB-203005-A (GB)
Title: Improvements in signalling apparatus for road vehicles and aeroplanes
IPC: B60Q1/34
Filed: 1922-03-06
Abstract: 203,005. Arrota Electrical & Motor Accessories Co., Ltd., and Masterman, H. March 6, 1922. Levers and rods, locking.- Pointer signalling-apparatus for use on vehicles and aeroplanes, particularly apparatus of the kind described in Specification 157,697, is provided with modified means for locking the pointer against movement except by means of the proper control. The spindle 1 carrying the pointer has an arm 2 secured to it and a pawl 3 is pivoted to the arm so as to move in a radial plane under the control of a spring. A disc 4 secured to the casing 5 has notches in its rim which are engaged by the pawl 3 when the signal pointer is in an indicating-position. A cam disc 6 is loosely mounted on the spindle 1 and is connected by parallel webs 7<a> embracing the arm 2 to a drum 7 by which the signal pointer is controlled. The cam 6 has a depression 6<a> in its rim in which the pawl 3 normally lies, but when the drum 7 is turned, its initial lost motion lifts the pawl by means of the cam 6, and its further movement causes the webs 7<a> to engage the arm 2 and to rotate the arm, spindle, and signal pointer. The flexible connection by which the drum 7 is operated is kept taut by a coiled spring 8.
Patent GB-608985-A (GB)
Title: Improvements in or relating to a process for the production of dimeric condensation products from unsaturated aldehydes
IPC: C07C45/72
Filed: 1946-03-04
Abstract: An alpha-beta disubstituted acrolein, having a secondary carbon atom attached to each of the alpha- and beta-carbon atoms of the acrolein residue, is treated in the liquid phase with a solution of an alkali metal hydroxide.  The products comprise a monohydroxy unsaturated monoaldehyde of the same empirical formula, but double the molecular formula of the aldehyde treated and/or an alkali metal salt of a dihydroxy monobasic acid derived from said monohydroxy unsaturated monoaldehyde by addition of the elements of water.  Acidification of this salt leads to the formation of a mono-hydroxy lactone.  The unsaturated aldehyde may be converted to the acid salt by further treatment with alkali metal hydroxide, or by mild hydrogenation, the corresponding glycol is formed, and by vigorous hydrogenation a hydrogenated glycol.  The reaction may be in aqueous suspension or in aqueous-alcoholic or alcoholic solution, at 0-80 DEG  C., and in an inert atmosphere such as nitrogen or methane.  In examples, alpha-ethyl-beta-propyl acrolein is (1) reacted with aqueous-alcohol potassium hydroxide for a shorter period to produce mainly the unsaturated aldehyde, and (2) for a longer period to obtain the potassium salt of the acid, which is converted to the lactone by acidification, or to the calcium salt by reaction with calcium chloride.  Also in examples, the aldehyde obtained under (1) is, (3) heated with aqueous - alcoholic potassium hydroxide to convert it to the acid salt which is acidified to give the lactone, and (4) hydrogenated under atmospheric pressure and (5) hydrogenated under high pressure, in presence of a Raney nickel catalyst, to give the glycol and hydrogenated glycol respectively.  Also in examples (6) alpha-ethyl-beta-propyl acrolein is reacted with aqueous-alcoholic sodium hydroxide to give mainly the sodium salt of the acid, which is acidified to give the lactone.  Radicals specified which may be attached to the alpha- and beta-carbon atoms of the substituted acrolein are propyl-, isopropyl-, butyl-, isobutyl-, sec.-butyl-, hexyl, octyl, dodecyl, hexdecyl, octadecyl, octadecenyl, allyl, methallyl, cinnamyl, benzyl, tert.-butyl-benzyl, phenylethyl, chlorophenyl, cyclohexyl, methylcyclohexyl, bornyl, naphthyl and bromethyl.
Patent GB-598365-A (GB)
Title: Improvements in or relating to needles for knitting machines
IPC: D04B35/04
Filed: 1945-03-17
Abstract: 598,365. Knitting. HEMPHILL CO. March 17, 1945, No. 6781. Convention date, March 17, 1944. [Class 74 (ii)] An enlargement 6 on the needle shank rema,ins below a needle loop 10 during normal knitting motions of the needle, but passes upwardly through, and so enlarges the loop when the needle is raised abnormally high. Any subsequent undesirable tendency for the loop to ride up the shank wilt be checked by the enlargement, and the loop, being loose on the shank, by reason of its passage over the enlargement, will drop down the shank again. The enlargement is on the hook side of the needle and clear of the latch at all times. The slope 7 is more abrupt than the slope 8. The invention is described in connection with a method of knitting involving drawing loops over the backs of sinkers 12, the sinkers being then withdrawn so that the loops pass over the nibs 13 to the sinker throats.
Patent GB-199077-A (GB)
Title: Improvements in dry gas meters
IPC: G01F3/22
Filed: 1922-03-08
Abstract: 199,077. Fox, T., and Robinson, S. March 8, 1922. Gas meters.-In the construction of a dry gas meter, the valve plate 3 of the meter is stamped cut of a sheet of metal, further stamped with marks 32 adapted to show the position of the various component parts to be mounted thereon, and the valve apertures cut out. the three operations being preferably performed simultaneously. The valves 5 are operated in the usual manner by rods 7 connected to a crank 8 formed on the spindle 10 which is mounted in a supporting bracket 11 formed of a single stamped metal plate rigidly secured on the valve plate. The bracket 11 is also provided with a lug 15 for supporting the prepayment mechanism spindle, and the vertical portion 14 thereof supports the indicating mechanism spindle 26 which is adjust ably connected to said mechanism, comprising a selfcontained unit 19, by a pin 27 and slot 28 connection. The valves are guided in the usual manner by lugs 16, the guiding rods 17 being provided with a mounting 18 adjustable along the rod 17 and provided with a pin for attachment to the valve rod 7. Replaceable brass sleeves are inserted in the bearings formed in the bracket 11. Specification 167,710 is referred to.
Patent GB-468205-A (GB)
Title: Improved method of setting diamonds to form wire-drawing dies
IPC: B21C3/18
Filed: 1937-03-08
Abstract: 468,205. Alloys. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 8, 1937, No. 6833. Convention date, March 11, 1936. [Class 82 (i)] [Also in Group XXII] In the manufacture of a wire-drawing die with an embedded diamond a sintering powder is used consisting of 94 per cent of tungsten, 4 per cent of nickel and 2 per cent of copper. A metal plate of the same composition is used for placing the diamond on before adding the powder.
Patent GB-419138-A (GB)
Title: Improvements in and relating to vehicle wheels
IPC: B60B25/04
Filed: 1933-03-07
Abstract: 419,138. Vehicle wheels. AVERY, W. L., The Blue House, Thorley, Bishop's Stortford, Hertfordshire. March 7, 1933, No. 6958. [Classes 12 (i), 144 (i), and 144 (ii).] The spaced projections 14 on the mating parts 4, 4<a> of a divisible-rim of the bayonet-joint type are formed with interengaging teeth 16, 16<a>, the parts being locked after assemblage by devices such as keys, spring-pressed bolts, or pivoted catches. In the construction shown in Figs. 1 and 5, the rim-parts are formed integral with the side-discs 1, 2, the latter being provided with a housing 22 for. a stream-lined brake-fitment of the kind described in Specification 390,505. In this form, the rim-parts are locked by one or more spring-pressed pins engaging registering apertures in the parts, the heads 19 of the pins being recessed into the disc 1. Fig. 11 shows a modification in which the rim-part 4<a> with its tyre-retaining flange 2<a> is formed separately from the wheel-part 2, driving-pins 27 pivoted on the rim-part 4 being adapted to engage registering notches in the rim-parts and the rim-seat on the brakehousing. Figs. 1 and 13 show arrangements (not claimed) of roller-bearings 7 and thrust ball-bearings 8 provided at the centres of the wheel-discs 1, 2. In Fig. 1, the thrust-bearings 8 are in the hub 5 of the disc 1, dust-excluding caps 9 being sprung over the facing ends of the hubs 5, 5a. In the form shown in Fig. 13, flanged races 10 are fitted to co-operate with the journal and thrust bearings.
Patent GB-266148-A (GB)
Title: Improvements in or relating to sustaining surfaces for aircraft
IPC: B64C3/54
Filed: 1926-03-13
Abstract: 266,148. Matthews, W. C. March 13, 1926. Controlling. - Auxiliary aerofoils a<1> - - a<5> of small chord are extended from or withdrawn into a recess in a main wing directly by means of vertical worms, cogs and ratchets, or by a lattice linkage in order to vary the flying speed. As shown, a. lazy-tongs linkage b is extended or collapsed along the shaft d by a worm wheel device. Other aerofoils may be arranged one above the other or in zig-zag fashion upon the arms of the lattice. The aerofoils may be extended upwards or downwards or both upwards and downwards from a main wing. Means for altering the angle of the auxiliary aerofoils relative to the wing may be provided. Similar aerofoils may be provided on a tail plane.
Patent GB-787263-A (GB)
Title: A combined stop and by-pass valve
Inventor: MOTTRAM ANTHONY WILLIAM THOMAS
IPC: F16K15/18
Filed: 1955-03-10
Abstract: 787,263. Valves controlled by auxiliary valves. ARMSTRONG SIDDELEY MOTORS, Ltd. Feb. 27, 1956 [March 10, 1955], No. 7016/55. Class 135. A combined stop and by-pass valve particularly for use with liquid oxygen or other liquid at temperatures below - 40‹ C. has a movable closure member 21 alternately engaging seatings 18, 40 whereby an inlet 12 is connected either with a main outlet 14 or with a by-pass passage 13, the valve member being connected by a stem 22 to an actuating piston having a connection 65 to a control valve 50, 53 which is actuated by pressure fluid under the control of a rotary, two-way valve 63 operated by a handle 68. The seating 40 is held in position by a ring nut 39 which also secures a sleeve 38 containing a restriction 44 by which the controlled liquid has access to the by-pass 13, and a guide 36 for the stem 22. The piston, which consists of two discs 24a, 24b carrying a packing ring 23 and is secured to the stem 22 by a nut 28, operates in a liner 25 and is loaded by a spring 30. With the valve 63 in the position shown the exterior of a sealing bellows 56 is vented to atmosphere through a port 67, whereby a spring 61 causes the closure member 53 to engage its seating 52 and the closure member 50 to leave its seating 46 whereby pressure from the inlet of the main valve is transmitted through passages 48, 47, 65 to the left-hand side of the piston to assist the spring 30 in holding the main valve member against its seating 18. The valve 63 may be turned to an alternative position in which it connects the bellows 56 with a pressure fluid supply conduit 69 whereby the bellows is compressed to seat the closure member 50 and open the closure member 53 to connect the passage 65 and left-hand side of the piston with the bypass passage downstream of the restriction 44 through a conduit 70, causing the piston to be moved to the left by pressure transmitted through openings 37 to its right-hand side whereby the main valve member leaves its seating 18 and closes the seating 40 and is held in such position against the force of the spring 30 by the pressure difference across the seating 40. To limit the speed at which the main valve member closes the seating 18 a restriction may be provided in the passage 48. Alternatively, to limit the speed at which the main valve member moves in the opposite direction, a restriction may be provided in the conduit 70 whilst to limit the speed of operation in both directions the passage 65 may be provided with a restriction.
Patent GB-657759-A (GB)
Title: Fuel injection devices for internal combustion engines
IPC: F02M41/08
Filed: 1948-03-08
Abstract: 657,759. Valves; regulating. RETEL, J. M. R. March 8, 1948, Nos. 7054 and 7055. Convention dates, March 7, 1947, and Feb. 25,1948. [Class 7(vi)] [Also in Groups XXVIII and XXIX] In an injection device for internal-combustion engines, a pump delivers to a fuel storage chamber 'connected through a cylindrical distributing valve to .the injectors, the quantity of fuel delivered being varied by adjusting the longitudinal position of the valve solely by the pressure in the storage chamber. Fig. 1 shows a fuel-injection pump comprising a number of parallel cylinders containing pistons 11 actuated by a swashplate 21. Each piston is provided with a valve 12 and fuel is drawn through the inlet 15 and valve 12 and delivered through the valve 17 and duct 10 to the storage chamber 18 containing capsules 19. A rotary distributing valve 34 is driven by the shaft 26 and fuel from the chamber 19 passes through the bore 58 to a port 40, duct 42 port 44, bore 45 to one or more ports 46 which align during rotation with one br more ports 47 leading to the engine cylinders. The rotary valve is loaded by a spring 36 and the pressure in the chamber 18 acts against this spring to adjust the valve axially, the ports 40, 44 in the valve have inclined edges so that as the valve moves axially, the time of the beginning of injection and the duration of the injection are varied in accordance with the pressure in the chamber 18. The end 55 of the valve is reduced to form a dashpot by arranging a spring-loaded sleeve 54 to surround it so that flow from the chamber 59 is throttled. The stroke of the pump pistons may be varied by adjusting the angle of the swashplate. Various arrangements of the ports in the rotary valve are described to suit engines with various numbers of cylinders. In the arrangement shown in Fig. 7, the storage chamber 18 is fitted with a relief valve 122 loaded by a spring 123 adjustable by a bolt 130. The chamber 125 is supplied with fluid under pressure and acts on the underside of plate 128 carried bv bellows 126 to varv the effective loading of the spring 123. This fluid may be sumpplied by a separate pump having an adjustable byepass valve. The fuel passes the valve 122 and passages 127 to the outlet 131. When the pressure of the fuel is used for regulating purposes, the bellows 126 and passages 127 are omitted and an adjustable valve is provided on the outlet from chamber 125. The duct 129 is provided with an adjustable valve for setting the fuel supply at idling speeds.
Patent GB-549828-A (GB)
Title: Improved process for the treatment of textile fabrics
IPC: D06M15/423
Filed: 1941-06-06
Abstract: 549,828. Coating compositions. YORKSHIRE DYEING & PROOFING CO., Ltd., CROSSLEY, W., and DEAN, J. June 6, 1941, No. 7146. [Class 95] [Also in Group VIII and IV] Textile fabrics of cotton or rayon mixtures thereof are rendered waterproof, gas-proof and translucent by treatment with a mixture comprising a plasticized urea - fomaldehyde type resin, e.g. " Bedafin " (R.T.M.) chlorinated rubber or a chlorinated synthetic rubber-like compound and paraffin wax. Alternatively the fabric may be first treated with the resin and then with the chlorinated rubber and wax. The resin may be applied in incompletely condensed form and further condensed by heating. Cotton fabrics are preferably singed, desized, scoured and/or mercerized before treatment. The fabric may be pre-treated with linseed or coconut oil. The chlorinated rubber may be dissolved in xylene or toluene with ethyl lactate or methyl cyclohexanol and may contain stabilizers and plasticizers, e.g. triethanolamine, calcium resinate, dibutyl phthalate and chlorinated diphenyl. The product may be used as balloon or aeroplane fabrics or as a glass substitute.
Patent GB-400835-A (GB)
Title: Improvements in or relating to electric discharge tubes for the emission of light
IPC: H01J61/94
Filed: 1933-03-09
Abstract: 400,835. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. March 9, 1933, No. 7199. Convention date, March 10, 1932. Drawings to Specification. [Class 39 (i).] A lamp is divided into two or more channels containing gases or vapours giving light of different colours, by means of a longitudinal partition formed of a material, for example, black glass, which is not transparent to the light produced in the channels. The partition may be of helical shape.
Patent GB-525995-A (GB)
Title: Apparatus for recovering volatile solvents from degreased articles
IPC: D06F43/08
Filed: 1939-03-06
Abstract: 525,995. Recovering solvents used in dry cleaning. TOD, A. H. March 6, 1939, No. 7218. [Classes 32 and 91] Solvent e.g. trichlorethylene retained by degreased articles is recovered by immersing the articles in water in an open tank 1 maintained below the B.P. of water but somewhat above that of the solvent, e.g. at 190‹F. by an electric heater 2 and thermostat 3, and drawing off the vapours through a hood 4 by a fan 6 to a solvent recovery plant 7. The fan 6 may be arranged behind the plant 7. Preferably a condenser for water vapour is placed before the plant 7.
Patent GB-550172-A (GB)
Title: Safety razor blade sharpener
IPC: B24D15/08
Filed: 1941-06-10
Abstract: 550,172. Sharpening razor blades. PECK, E. F. June 10, 1941, No. 7305. [Class 60] Razor blades are sharpened between a plug 7 and cylindrical sleeve 5 recessed at each end at 8. The plug is oscillated relatively to this sleeve which may have an internal flange at one end. The sleeve is glass lined or is made of glass, stone &c. and the plug may be of similar material. Reference has been directed by the Comptroller to Specification 358,777.
Patent GB-589425-A (GB)
Title: Catalytic conversion of hydrocarbon oils
IPC: B01J21/20
Filed: 1945-03-22
Abstract: Hydrocarbon oils are cracked by contacting with a solid supported boric oxide catalyst at a temperature within the range of 700 DEG F. to 1100 DEG F., and regenerating the catalyst by burning after each period of contact which must not exceed seven minutes. The catalyst support may be alumina, or silica, or silica-alumina composites.  A suitable catalyst comprises 8 to 30 per cent. boric oxide, 3 to 15 per cent. silica 0.1 to 1 per cent. sodium oxide, and the remainder alumina gel.  Process periods of 3 to 5 minutes are preferred.  Steam may be used as a diluent in any desired amount.
Patent GB-416387-A (GB)
Title: Improvements in or relating to the introduction into sealed vessels such as electricdischarge tubes of materials to be converted into vapour
IPC: H01J9/395
Filed: 1933-03-10
Abstract: 416,387. Discharge apparatus &c. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ALDOUS, W. H., c/o General Electric Co., Wembley, Middlesex. March 10, 1933, No. 7368. [Class 39 (i).] Material to be liberated in the form of vapour within a sealed vessel by the application of heat during the manufacture of a device of which the vessel forms part or the whole, for example, mercury to be vaporized in electric lamps and valves or alkali metal in photoelectric cells or barium to be introduced as a getter, is contained in an air-tight enclosure which prevents oxidation of the material or premature vaporization thereof during the early stages of manufacture of the device and which is composed of two metals or alloys, viz. a closure metal melting or vaporizing when the enclosure is heated to vaporize the contained material and a main metal remaining solid during this heating. A seamless tube of the main metal may have its ends sealed by the closure metal applied by spraying or soldering, or its ends may be compressed on plugs of the closure metal. A seamed tube of the main metal may be coated with closure metal at its ends and seam or wholly. The main metal may be nickel and the closure metal magnesium or aluminium having a gettering action. In introducing mercury into a valve, a seamed nickel tube containing the mercury has its ends partially closed by pressure and is then made air-tight by dipping quickly into molten magnesium. The tube is mounted at its ends on a metal ring in which currents are induced to vaporize the mercury, or the ends of the tube are heated by filaments. The Provisional Specification describes also an air-tight enclosure consisting of a vitreous tube with its ends closed by the closure metal.
Patent GB-496445-A (GB)
Title: Improvements in tapping screws
IPC: F16B25/00
Filed: 1938-03-10
Abstract: 496,445. Self-tapping screws. ILLINOIS TOOL WORKS. March 10, 1938, No. 7531. Convention date, April 19, 1937. [Class.83 (iii)] In a tapping-screw in which a longitudinal recess 18 provides at the entering end a cutting section 22 with a serrated cutting edge and a yielding section 20, the recess is made narrower at its base than at the entering end so as to form the cutting section with an acute-angled cutting edge. The recess may consist of two parts 18a, 18b of different depths, the shallower part being next to the cut - ting section, and the recess, or its deeper part, preferably has a depth greater than the radius of the threaded body 14 of the screw. The two-part or stepped recess may be made by two cutters of different radii rotated about the same centre, the recess then having arcuate bottom surfaces at right-angles to its side walls. The threads in the tapping portion B of the screw may decrease in external diameter towards the entering end so as to leave peripheral core portions 16 which increase in axial width. Alternatively, these threads may be of constant height with a crest diameter which decreases towards the entering end. Specifications 386,083, 386,895, [both in Group XXV], and 468,744 are referred to.
Patent GB-367588-A (GB)
Title: Improvements in or relating to the electrodeposition of the metals of the platinum group
IPC: C25D3/50
Filed: 1931-03-12
Abstract: 367,588. Electrodeposition of platinum, palladium, rhodium, and their alloys. POWELL, A. R., DAVIES, E. C., and JOHNSON, MATTHEY, & CO., Ltd., 78, Hatton Garden, London. March 12, 1931, No. 7603. [Class 41.] The metals are deposited from solutions of their double nitrites with sodium or any other metal which forms a stable and soluble double salt and is not itself deposited. The preferred bath contains 1-1À5 per cent of the platinum group metal as double sodium nitrite. The bath may be neutral but is preferably slightly acidified with about 5 per cent of phosphoric acid, or with sulphuric, oxalic, or other acid which is not decomposed by the current. The throwing power may be improved by addition of a conducting salt such as sodium sulphate. Alloys of the metals with one another in any desired proportion may be deposited from a mixture of their double nitrites, e.g. a mixture of sodium platinonitrite and sodium rhodonitrite. The baths are operated above 40‹ C., preferably at 65-80‹ C.
Patent GB-178811-A (GB)
Title: Improvements in or relating to processes for the production of fabrications of rubber and filamentary material and to products obtained thereby
Filed: 1922-03-15
Abstract: 178,811. Hopkinson, E. April 22, 1921, [Convention date]. Fabrics composed of threads united by adhesives; coating materials in long lengths; compound fabrics and sheet materials; fabrics with multiple superposed coatings; single coatings; treatment prior to coating. -Rubberized fabrics are made by impregnating cords with rubber latex and forming a sheet by drying a layer of parallel cords. This sheet may be united on one side to a sheet of sateen or the like and on the other to a sheet of rubber. The cords or threads pass in parallel formation from a creel 1 through a latex bath 5, between doctor blades 11, and over drying rolls 12. The material may be passed more than once through the baths. A sheet of sateen 14 passes round the rolls under the threads so that during the passage the threads are united to one another and to the fabric 14. The compound fabric is wound upon a roll 16. Air may be removed by evacuation from the threads before immersion. The product may be vulcanized by means of material mixed with the latex or applied to the dried product. The Specification as open to inspection under Sect. 91 (3) (a) states that the invention covers the application of " a water emulsion of rubber " to " filamentary materials " (other than unwoven cords). This subject-matter does not appear in the Specification as accepted.